JOINT STRUCTURE BETWEEN PRECAST FLOOR SLAB AND BRIDGE GIRDER FOR CONSTITUTING BRIDGE SUBGRADE

摘要

PURPOSE:To make it possible to provide sufficient strength to a joint part between a precast floor slab and a bridge girder which form a road surface of a bridge. CONSTITUTION:One precast floor stab 3 and the other precast floor slab 4 are loaded on a bridge girder 2 where a space 17 is provided between their end faces. A stud dowel 20 is fixed with the top of the bridge girder 2 directed at the space 17. Concrete 23 is placed inside the space 17 and a joint surface 19 between both floor slabs 3 and 4 and the top of the bridge girder 2 while the stud dowel 20 is buried in the concrete 23. In this joint structure between the precast floor slab 1 which constitutes a road surface and the bridge girder 2 as described above, connecting reinforcements 32 installed between the precast floor slabs 3 and 4 is buried in the concrete 23 in a lapped state with the stud dowel 20.